DCN Diving
Your subsea service provider
Your subsea service provider
Your subsea service provider

Introduction to DCN Diving


DCN Diving, established in 1957 (as Vriens Diving), has over 60 years-experience in subsea operations. It is a family owned company with its head office based in the Netherlands Bergen op Zoom and supporting subsidiaries and branch offices in Belgium, Germany, UAE and Singapore.

DCN Diving operates as a world-wide subsea service contractor and is an IMCA member for Surface supplied diving, Saturation diving and ROV operations. DCN Diving is specialized in:

  • Hyperbaric welding and hyperbaric testing using specialized in-house experience and equipment including its Hyperbaric Test Facility in Bergen op Zoom
  • Creating dry space underwater with the use of habitats, cofferdams, bulkheads and more
  • Subsea rehabilitation of hydropower dams
  • Underwater concreting and other civil works
  • Pipelines installation dive support
  • Subsea support in the renewable energy sector
  • Vessel Inspection and Maintenance
  • Offshore subsea Inspection Repair and Maintenance (IRM)

DCN is certified according to ISO 9001:2015, ISO 14001:2015, ISO 45001, SCC** and FPAL and has various certificates (ABS, Lloyds, KR, Bureau Veritas, Rina) for In-water Survey and has class certificates for its Surface Supplied and Saturation Diving systems.

Diving Services

IMCA Certified Diving Contractor for Air, Nitrox and Saturation Diving

ROV Support

IMCA Certified ROV Contractor operating Observation and Workclass ROVs

Subsea Engineering

Providing innovative subsea engineering with a dedicated in-house Engineering Team since 1957

Hyperbaric Testing, Welding & Operations

DCN Hyperbaric Test Centre in Bergen op Zoom and several Habitat systems to  provide Hyperbaric Welding and Operations


Specialist service provider for Underwater Concreting, Hydro Power Dams Subsea Maintenance, Bridge Constructions, Delta Works, Sluices, Quay Walls

Dive Support

Provider and Diving, ROV and Survey Operator of DSVs

Our Recent Projects

For a full overview, click here.

Dana Unity DSV Campaign

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DCN Diving was contracted by Dana Petroleum for the fabrication and  installation of pipeline spool, IRM at Dana's Platforms (F2-A, P10-05, P11-B, P11-C, P11-01, P11-09), Replacement of New Sensors in...

Turkstream Pipeline Installation Support

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DCN Diving was contracted by Allseas for Dive support on the Pipelay Vessel Loralay and utlization of the DSV Normand Poseidon for the pipeline installation of Turkstream (Gas Pipeline from...

Refurbishment Cruise Terminal Antwerp

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DCN Diving was contracted by Artes Roegiers in 2018 for the design and fabrication of a purpose-built cofferdam in order to rehabilitate the quay wall of the cruise terminal in...

Sur de Texas Pipeline Installation Support

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DCN was contracted in 2018 by Allseas for Dive Support on the installation of a Gas pipeline from the Texas (VS) to Tuxpan (Mexico). The project took place between june...